Tracher backchannel note fix

aspnetcore/security/authentication/facebook-logins.md

@@ -42,7 +42,7 @@ This tutorial shows you how to enable your users to log in with their Facebook a
 * When deploying the site you'll need to register a new public url.
 
 > [!NOTE]
-> You don't need to configure **signin-facebook** as a route in your app. The ASP.NET Core team's implementation of the OAuth flow will create a temporary socket (called a *backchannel*) that listens at this route just for the duration of the OAuth flow.
+> You don't need to configure **signin-facebook** as a route in your app. The Facebook middleware will automatically intercept requests at this route and handle them to implement the OAuth flow.
 
 * Make a note of your *App ID* and your *App Secret* before dismissing this page so that you can add both into your ASP.NET Core app later in this tutorial.
 

aspnetcore/security/authentication/google-logins.md

@@ -59,7 +59,7 @@ This tutorial shows you how to enable your users to login with their Google+ acc
 * When deploying the site you'll need to register a new public url.
 
 > [!NOTE]
-> You don't need to configure **signin-google** as a route in your app. The ASP.NET Core team's implementation of the OAuth flow will create a temporary socket (called a *backchannel*) that listens at this route just for the duration of the OAuth flow.
+> You don't need to configure **signin-google** as a route in your app. The Google middleware will automatically intercept requests at this route and handle them to implement the OAuth flow.
 
 * Tap **Create client ID**, which will take you to the third step:
 

aspnetcore/security/authentication/microsoft-logins.md

@@ -48,7 +48,7 @@ If you don't already have a Microsoft account, tap *[Create one!](https://signup
 * When deploying the site you'll need to register a new public url.
 
 > [!NOTE]
-> You don't need to configure **signin-microsoft** as a route in your app. The ASP.NET Core team's implementation of the OAuth flow will create a temporary socket (called a *backchannel*) that listens at this route just for the duration of the OAuth flow.
+> You don't need to configure **signin-microsoft** as a route in your app. The Microsoft Account middleware will automatically intercept requests at this route and handle them to implement the OAuth flow.
 
 * Don't forget to tap **Add Url** to ensure the Url was added.
 

aspnetcore/security/authentication/twitter-logins.md

@@ -30,7 +30,7 @@ This tutorial shows you how to enable your users to [log in with their Twitter a
 * When deploying the site you'll need to register a new public url.
 
 > [!NOTE]
-> You don't need to configure **signin-twitter** as a route in your app. The ASP.NET Core team's implementation of the OAuth flow will create a temporary socket (called a *backchannel*) that listens at this route just for the duration of the OAuth flow.
+> You don't need to configure **signin-twitter** as a route in your app. The Twitter middleware will automatically intercept requests at this route and handle them to implement the OAuth flow.
 
 * Tap **Create your Twitter application**. New application details will be displayed: